WaveCel advanced helmet technology;The Boa System lets you easily secure and adjust helmet fit with just one hand;Fidlock magnetic buckle fastens effortlessly for a quick, secure fit;The rear Blendr mount system easily integrates Bontrager light accessories;Soft, comfortable, moisture-wicking and washable helmet pads;Reflective elements on the back of the helmet offer enhanced visibility to be seen;The Crash Replacement Guarantee provides a free helmet replacement if involved in a crash within the first year of ownership;